Oriental Poppies (Papaver) provide huge, spectacular spring flowers that few plants can match. Perennial Poppies are long-lived and low-care plants are best suited to gardens in cooler climates. Poppy plants were often showcased in paintings by famed Santa Fe artist, Georgia O'Keeffe. Oriental Poppy plants grow well in most soil types, including clay. Papaver orientale go summer dormant, so be sure to plant them behind taller summer blooming perennials to hide them when they're asleep.